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After all, NY Steinways for several decades were built with angled capstans driving wippens with square capstan blocks.

ddf

...and I've also seen NY Steinways built with vertical capstans and wippens that had the heel-felt slot set at an angle as was appropriate for the no-longer used angled capstans. It makes one wonder...

So far the only things I had to change was to remove the hammer rest and remold the whippen flange rail. I didn't have to move the let-off button rail.I haven't leveled the keys yet. but so far it appears to be working out.

I have enjoyed this thread. Interesting. I'd be curious about the touchweight with the new parts. Heavier? Lighter? It seems that the parts will work...with the modifications on the rail and a washer under the let-off rail...but what does it feel like?

I would have wait to have the strings mounted to glue the hammers, because strike line depends of them, you may have to change some part and glue at a differnt dimension on the shank, if it is better for tone

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Professional of the profession.

I wish to add some kind and sensitive phrase but nothing comes to mind.!

The hammers and shanks were assembled in Larry Buck's shop on the same model Kimball. For some reason they decided not to continue with the rebuild.

I ended up with the piano, I put the action in my shop and the rest of the piano in another basement.

Well a few months later the basement flooded with 20" of water.For some reason after a day and a half sitting in water the piano had some major veneer and glue-joint problems.So I had to put it asleep.

I held the hammers side by side with the ones I pulled out of this Kimball and as far as I could see they are a perfect match.

I would note that the kimball wipp, by using the silk cords eliminates the friction butterfly springs create in the groove in the balancier. I don't know if this compensates for the compond loading of a butterfly spring in repetition, but I've never found a kimball style wipp bound up with a big blob of graphite grease either.

Yes Craig I appreciate your reply. My original questions was "Ar Steinway whippens beter than Kimball whippens"My thought are that Steinway whippens cost about twice as much as Kimball whippens doesn't this apply with you get what you pay for.Also I wanted to make this action feel more like the higher end pianos feel.One of the reasons I'm attempting to change this action is that I had the unbelievable opportunity to play $50,000 to $150,000 pianos and I'm on a quest to get there.I hate to admit it but I have long way to go.

It may be a long road, but you seem to be digging in with some determination. The one advantage that the Steinway wipp may offer is the room to move the capstan closer to the jack. Action work is essentially advanced teeter-totter theory. How do we lift the big kid with the little kid? Moving the capstan toward the balance rail is essentially like moving the big kid closer to the fulcrum. The little kid gains an advantage. This also means that the capstan is pressin farther out on the wippen body, it lengthens that lever and gives an advantage to the key that is trying to lift it. Two advantages from one change.I mention this because you are working on a very short piano. In the quest to make a small piano, many makers resort to taking an inch or two off of the length of the keys, without making any changes to the action stack. This robs the key of its leverage against the action. This in turn gives a heavy touch, to be lessened by the addition of leads, which in turn increases the action's inertia. Most high end pianos avoid this.You might also want to compare the weight of your hammers with the original. That one gram at the hammer equals 5, 6, or 7 grams at the key rule can get out of controll fast.